XC6901D821ER-G

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The XC6901D821ER-G is a negative voltage CMOS regulator from Torex Semiconductor, providing a fixed output of -8.2V with a maximum output current of 200mA. It operates within an input voltage range of -2.4V to -12.4V and features high accuracy of ±1.5% for outputs below -2.0V. The device includes an ON/OFF control function via the CE pin, enabling stand-by mode with ultra-low power consumption. Built-in protections include current limiting, foldback short-circuit protection, and thermal shutdown at 150°C. It utilizes ceramic capacitors and offers fast auto-discharge capabilities.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Negative voltage regulation with integrated reference source, error amplifier, and driver transistor
• ON/OFF control functionality allowing rapid discharge of output capacitor charge in stand-by mode
• Built-in protection circuits including current limit, foldback short-circuit protection, and thermal shutdown
• Compatible with low ESR ceramic capacitors due to internal phase compensation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Negative power supplies
• Wireless LAN modules
• Digital still cameras
• Mobile devices and terminals

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix ER-G confirms the USP-6C package type and RoHS compliance status. Confirm that the 'D' designation aligns with the required maximum operating temperature of 85°C versus the 'E' variant's 105°C rating. Ensure the ordering code matches the fixed -8.2V output specification. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and current production status before finalizing procurement.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a stable negative rail is required for portable electronics or communication modules. The fixed -8.2V output eliminates external resistor networks, simplifying design. Consider the USP-6C package for compact layouts. Evaluate the dropout voltage characteristics relative to the minimum expected input voltage to ensure regulation under all load conditions. Verify that the CE pin logic levels match the system control interface.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the XC6901 series of negative voltage regulators designed for low-power applications. The series offers various fixed output voltages ranging from -0.9V to -12.0V. The XC6901D821ER-G specifically provides -8.2V output. It is part of Torex's portfolio of CMOS LDOs featuring high precision and low quiescent current, suitable for battery-operated devices requiring efficient power management.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Consult the official datasheet for direct substitute part numbers within the XC6901 series offering different output voltages or packages. Verify compatibility if replacing with other negative regulator families, ensuring input voltage ranges and current capabilities meet system requirements.